Trianco TRO Evolution 20 Heat Only Outdoor, TRO Evolution 30 Heat Only Outdoor, TRO Evolution 40 Heat Only Outdoor Installation And Operating Instructions Manual
2.- DESCRIPTION OF COMPONENTS .................................................................................................................................................................................5
3.- CONTROL ELEMENTS...........................................................................................................................................................................................................6
9.- SHUTTING DOWN THE BOILER...................................................................................................................................................................................... 19
11.- FIRST START-UP ................................................................................................................................................................................................................... 19
12.- DELIVERY OF THE SYSTEM ............................................................................................................................................................................................ 20
16.- DIAGRAMS AND MEASUREMENTS.......................................................................................................................................................................... 25
19.- SPARE PARTS LIST.............................................................................................................................................................................................................. 36
Thank you for choosing a TRIANCO heating boiler. You have chosen a boiler that, with a
suitable hydraulic installation and using oil for fuel, will provide the ideal level of comfort for
your home.
This manual forms an essential part of the product and it must be given to the user. Read the
warnings and recommendations in the manual carefully, as they contain important
information on the safety, use and maintenance of the installation.
These boilers must be installed by qualified personnel only, in accordance with the legislation
in force and following the manufacturer's instructions.
The start-up of these boilers and any maintenance operations must only be carried out by
Official Technical Assistance Services of TRIANCO.
Incorrect installation of these boilers could result in damage to people, animals or property,
and the manufacturer will hold no liability in such cases.
TRIANCO informs all parties concerned that, in compliance with section 1 of the first
additional provision of Law 11/1997, the responsibility for delivering packaging waste or used
packaging for its proper environmental management will be that of the final owner of the
product (Article 18.1 Royal Decree 782/1998). At the end of its useful life, the product must
be taken to a selected collection point for electrical and electronic equipment or must be
returned to the distributor at the time of purchasing a new equivalent appliance. For more
detailed information on the collection schemes available, contact either the collection
facilities of the local authority or the distributor where the purchase was made.
page -4-
2.- DESCRIPTION OF COMPONENTS
1. Blow-off valve.
2. Domestic sealed oil burner.
3. Bulb-holder sheath.
4. Automatic air bleed valve.
3
4
5. INOX Condenser output diam. 100.
6. Automatic air bleed valve.
7. Condensate siphon.
8. Cast body.
5
6
2
7
8
1
page -5-
3.- CONTROL ELEMENTS
Temperature and pressure meter (9):
It indicates the water pressure and temperature in the boiler.
Control thermostat (10):
With this we can select the operating temperature of the central heating, stopping the burner
when the boiler temperature is equal to that selected or keeping it going when it is less.
Test switch (11):
It makes it possible to demand heating regardless of the signal from the thermostat.
Master switch (12):
This lets us turn the boiler on and off by pressing the "O/I" switch.
Blocked due to temperature pilot light (13):
When lit, it indicates that the boiler operation has been blocked due to excessive temperature
(higher than 110ºC).
Boiler safety thermostat (14):
This is a cut-out mechanism to ensure the boiler temperature does not exceed 110ºC.
page -6-
4.- INSTALLATION INSTRUCTIONS
This boiler is suitable for heating water to a temperature below boiling point at atmospheric
pressure. It must be connected to a heating installation and/or a domestic hot water
distribution network, which must always be compatible with its performance and power.
This appliance must only be used for the purpose for which it has been expressly designed. Any
other use is considered unsuitable and therefore hazardous. The manufacturer shall not be
considered liable under any circumstances for damage caused by unsuitable, erroneous or
irrational use.
Remove all the packaging and check the contents are complete. In case of doubt, do not use
the boiler. Contact your supplier. Keep the packaging elements out of reach of children, as
they can be dangerous.
When you no longer wish to use the boiler, disable the parts that could represent a potential
hazard.
The boiler must be installed by personnel authorised in accordance with the applicable
regulations and standards in force. However, the following recommendations must be
complied with when installing the boiler:
4.1.- Location
The TRO Evolution Heat Only Outdoor boiler must be installed taking into account the following
guidelines:
- It must be placed on a solid, level base which can bear the weight of the boiler, even
when it is full of water.
- It can be installed either against a building or in an open area at a distance from the
building.
-
The relevant instructions must be followed for the correct installation of the flue outlet.
- Maintain the
the components and maintenance operations.
-
The boiler must be positioned in such a way that does not obstruct the air inlets.
minimum distances from any obstacle which may hinder the access to
4.2.- Hydraulic Installation
The hydraulic installation must be made by qualified personnel. The applicable installation
legislation is to be complied with, and the following recommendations should also be taken
into account:
-
The inside of the installation piping should be thoroughly cleaned before switching on
the boiler.
-
We recommend inserting cut-off valves between the installation piping and the boiler
to simplify maintenance tasks.
-
Fill the siphon with water before starting up the unit, to prevent fumes coming out of it.
page -7-
-
The condensation pipe should lead to a drain outlet, as the Evolution boiler is a
condensation boiler and a large amount of water may be generated. This connection
should be made in accordance with the regulations for draining off condensation
water to the drain network.
-
Drain valves and suitable devices for correctly bleeding the air from the circuit during
the boiler filling stage should be fitted.
-
Install all the necessary safety elements (expansion vessel, safety valve, etc.) to comply
with the applicable regulations for the installation.
-
The boiler is equipped with a standard 12 litre closed expansion vessel in the TRO
Evolution 20 Heat Only Outdoor model and a 14 litre vessel in the TRO Evolution 30 Heat
Only Outdoor and TRO Evolution 40 Heat Only Outdoor models
volume of the hydraulic circuit, it may be necessary to install an additional expansion
vessel consistent with this volume.
WARNING: In order to avoid damage to the boiler, antifreeze fluid must be added to the
water of the heating circuit. If the boiler is to be out of use for long periods of time, we
recommend draining all the water and leaving it empty.
Depending on the total
.
4.3.- Condensation pipe
The condensation pipe should lead to a drain outlet, as the TRO Evolution Heat Only Outdoor
boiler is a condensation boiler and a large amount of water may be generated. This
connection should be made in accordance with the regulations for draining off
condensation water to the drain network and the following recommendations must be
complied:
-
The length of the pipes should be as short as possible. The sections external to the
boiler should not exceed 3 m so as to reduce the risk of freezing.
- They must have a minimum inclination to the outside of 3º from the boiler.
- The diameter of the external pipe of the boiler should be greater than 30mm so as to
reduce the risk of freezing.
- The condensation drainage pipe must be resistant to the acids of the condensation
agents. Plastic materials used in water drainage are suitable, whereas copper or steel
piping should not be used.
4.4.- Electrical Connection
The boiler is equipped for connection at 230 V~, 50 Hz to terminals L and N of terminal strip J1
(see “Electrical Diagram”). This appliance must be earthed. The 5 poles male power supply
connector is in the documentation bag. This connector has also two terminals prepared for
connecting the room thermostat (see wiring diagram).
page -8-
4.5.- Oil installation
The TRO Evolution Heat Only Outdoor boiler is supplied with a Domestic gas-oil burner (see
model in Technical Characteristics). To install the oil line, proceed in accordance with the
burner instructions enclosed with this manual (see Burner section). The oil line installation and
start-up of the burner must be carried out by qualified, authorised personnel.
4.6.- Combustion products exhaustion
The installation of exhaustion of the products of combustion has to be carried out by
qualified personnel staff and it will fulfill the requirements demanded in the legislation and
effective regulatory schemes.
The TRO Evolution Heat Only Outdoor boilers are oil-fired boilers, and the combustion
products are therefore removed through an outlet pipe. It is recommended that the position
of the outside exhaust duct is as shown in the figures and in the table below:
Terminal position
A Directly below an opening, air brick, opening window etc. 600
B Horizontally to an opening, air brick, opening window etc. 600
C Below a gutter, eaves or balcony with protection 75
D Below a gutter or balcony without protection 600
E From vertical sanitary pipework 300
F From an external or internal corner or surface or boundary alongside a terminal
G Above ground or balcony level300
H From a surface or boundary facing terminal 600
J From a terminal facing a terminal1200
K Vertically from terminal on the same wall1500
L Horizontally from terminal on the same wall750
horizontal flue
Balanced
mm
300
page -9-
Besides this figures and the table above the following recommendations must be complied
with when installing the boiler:
- Terminals should be positioned to avoid products of combustion accumulating in
stagnant pockets around the building, or entering into buildings.
- If the lowest part of the terminal is less than 2m above the ground, balcony, flat roof
or other place to which any person has access, the terminal must be protected by
a stainless steel guard.
- Notwithstanding the dimensions given in the diagram and table, a terminal should
not be sited closer than 300mm to combustible material.
- Flue gases have a tendency to plume and in certain weather conditions a white
plume of condensation will be discharged from the flue outlet which could be
regarded as a nuisance, for example, near security lighting.
- There should be no restriction preventing the clearance of combustion products
from the terminal.
- Where a flue is terminated less than 600mm away from a projection above it and
the projection consists of plastic or has a combustible or painted surface, then a
heat shield of at least 750mm wide should be fitted to protect these surfaces.
NOTE: All accessories used for combustion product removal and air intake should be those
supplied by TRIANCO.
4.7.- Draining the boiler
The boiler is emptied by opening the drain tap located in the rear of the boiler. A flexible
hose must be attached to this tap to direct it to a water outlet. After draining the boiler, the
valve must be closed and the flexible tube removed.
4.8.- Precautions for preventing noise during operation
Ensure the flow and return pipes are not touching each other, or insulate them to prevent
any vibration noise. The boiler must be correctly seated on its base and levelled. Before startup, make sure that the boiler and the system have been properly bled.
4.9.- Filling and bleeding the installation
To fill the installation, open the fill valve until the manometer shows a pressure of 1 - 1.5 bars.
The circuit should be filled slowly and with the automatic air bleed valve cap loose, to let the
air out of the installation. The air should also be bled from the rest of the installation using the
air bleed valves provided. Close the fill valve after filling.
CAUTION: Switching on the boiler with no water inside could result in serious damage.
page -10-
5.- COMBUSTION PRODUCT REMOVAL
The combustion product exhaust ducts must be installed by qualified personnel and must
comply with current legislation and standards.
The maximum length of pipe that can be installed is 12 metres (TRO Evolution 40 Heat Only
Outdoor) and 15 metres (TRO Evolution 20/30 Heat Only Outdoor). Each elbow of 90°, or two of
45°, reduces the available length by 1 metre, and 1 metre of horizontal pipe represents 2
metres of vertical pipe.
It is recommended that the flue gases outlet pipe be fitted slightly upwardly-inclined 2º to 3º
thus preventing water and condensate projections from being ejected outside.
CAUTION: The air intake holes provided in the upper part of the door must not be obstructed at
any time.
5.1.- Horizontal combustion product removal
The TRO Evolution Heat Only Outdoor boiler comes equipped with a 45º horizontal outlet
terminal which can be placed on each of the sides or on the back of the boiler for removing
fumes.
RIGHT
EXIT
REAR
EXIT
LEFT
EXIT
page -11-
The steps for correctly modifying the position of the flue outlet are listed below:
NOTE: Fit the pipe with a slight upwards incline of around 2º - 3º, to prevent any water or
condensation from dripping out.
page -12-
5.2.- Vertical combustion product removal
The combustion products exhaustion can be carried out through vertical pipe of Ø100 mm.
CAUTION: The flue terminal must not be conducted to the wall to avoid condensates.
page -13-
6.- PIPE CONNECTIONS
The heating outlet and the hetaing return of the TRO Evolution Heat Only Outdoor boiler can be
conducted optionally for either side of the boiler. through the pre-cut openings provided (see
"Diagrams and Measurements"), when the boiler is instaleed against the building (see pictures
Nº4a and 4c). For “free standing” installations the pipework can be conducted trough the precut openings provided in the base of the enclosure (See picture Nº4b). In this way the boiler
can adapt to installations site needs. The boiler is equipped with ¾” female connections for the
heating outlet and return.
The boiler is equipped with different removal panels on the rear, sides and top to gain access
to the water connection, condensate pipe, components and do maintenance (see picture
Nº2). Withdraw them removing carefully the stainless screws.
The steps for correctly connecting the heating outlet and return are listed below:
page -14-
6.1.- Hydraulic Kit OD (Optional)
A Hydraulic Kit OD may optionally be supplied together with the TRO Evolution Heat Only
Outdoor boiler. This kit basically consists of a heating circuit pump, heating outlet and return
pipes, pressure switch and the expanssion vessel. For correct hydraulic installation, carefully
follow the assembly and connection instructions enclosed with the kit.
The procedure for suitably connecting the Hydraulic KIT OD to the TRO Evolution Heat Only Outdoor boiler is as follows:
page -15-
page -16-
page -17-
7.- OPERATION
7.1.- Boiler functioning
Set the control thermostat and the room thermostat (if applicable) to the desired
temperature. Move the main switch to the "I" position. The burner and the pump will begin to
function until the installation reaches the pre-selected temperature of the control thermostat
(or the room thermostat, if the unit has one). When the temperature in the installation drops
below the selected boiler temperature, the burner will start up again, running the heating
cycle.
7.2.- Test switch
The boiler is provided with a switch in order to makes possible to demand heating regardless
of the signal from the thermostat.
7.3.- Frost protection
The TRO Evolution Heat Only Outdoor models are supplied with a factory fitted frost
protection thermostat, located behind the electric panel inside the boiler. This thermostat is
pre-wired to the boiler electrical system and factory set to 3ºC. This will function as long as
the appliance remains plugged into the mains and the master switch is swichted on. Despite
this function, and particularly in areas with very cold weather, we recommend taking
precautions in order to prevent damage to the boiler. It is advisable to add anti-freeze to
the water in the heating circuit. If the boiler is to be out of use for long periods of time, we
recommend draining all the water and leaving it empty
.
7.4.- Room thermostat connection
The boiler has two terminals, Ls and Lr in the power supply connector, for connecting room
thermostat or room chronothermostat (J1 see "Electrical Diagram”). This allows the heating
mode for each circuit installed to be switched off according to the room temperature. To
suitably connect them simply connect the thermostat to the terminal strip.
Installing a room thermostat will optimise the installation’s performance, adapting the
heating to the requirements of your home and obtaining enhanced comfort. Also, if the
thermostat allows the hours of functioning to be programmed (chronothermostat), it can
adapt the heating system to the hours of use of the installation.
8.- SAFETY CUT-OUTS
The boiler has three types of safety cut-outs:
8.1.- Excessive temperature safety cut-outs (Thermostat TS)
This cut-out is indicated by the pilot light for blocking due to temperature. This occurs when
the boiler exceeds a temperature of 110ºC. To restart, press the button on the safety
thermostat after first removing the button cover.
page -18-
8.2.- Low pressure cut-out
If the Hydraulic Kit OD is installed, optional in the TRO Evolution Heat Only Outdoor models,
this cut-out occurs when the boiler pressure drops to below 0.5 bar, preventing the boiler
from functioning when the water is drained from the installation, due to either leakage or
maintenance operations. This cut-out is indicated by the blocking pilot light. To unblock it, fill
the installation again until a pressure of between 1 - 1.5 bar is indicated on the thermostat
pressure gauge.
8.3.- Burner cut-out
This occurs as a result of an anomaly in the burner or in the fuel installation. To unblock it,
press the illuminated button that lights up on the burner.
NOTE: If any of these cut-outs occur repeatedly, call your nearest official Technical Assistance
Service.
9.- SHUTTING DOWN THE BOILER
To stop the boiler, simply turn the master switch to "O".
10.- START-UP
Before beginning the start-up process of the boiler, check that:
- The boiler is connected to the mains.
- The installation has been filled with water (the manometer should indicate a pressure of 1
- 5 bar).
- The fuel reaches the burner.
- The isolation valves are open, if there are any installed.
- The room thermostat is set to the desired temperature.
- The boiler room has effective and free ventilation (ventilation based on 0.5 dm2
minimum).
To start-up the boiler, position the main switch and the room thermostat to the desired
temperature.
11.- FIRST START-UP
For the guarantee to be valid, the boiler must be started up for the first time by an official
TRIANCO Technical Assistance Service. Before beginning the start-up process, the following
must be complied with:
- The boiler must be connected to the mains.
- The installation must have been filled with water (the manometer should indicate a pressure of
1 - 5 bar).
- The fuel must be reaching the burner at a pressure of no more than 0.5 bar.
page -19-
12.- DELIVERY OF THE SYSTEM
After the initial start-up, the Technical Assistance Service will explain to the user how the boiler
functions, making any observations they consider relevant.
The installer is responsible for clearly explaining to the user the functioning of any control or
regulation device forming part of the installation but not supplied with the boiler.
13.- BOILER MAINTENANCE
To maintain the boiler in perfect working order, a yearly service must be performed by
personnel authorised by TRIANCO.
13.1.- Cleaning the boiler
To maintain the boiler in optimal operating conditions it is recommended that an annual
cleaning be undertaken of the combustion chamber, the fume outlets and the condenser.
A cleaning brush of a suitable size for cleaning the inside of the exhaust ducts is supplied with
the boiler for this purpose. This brush is located at the rear of the boiler, beside the
condenser.
The combustion chamber and exhaust ducts should not be cleaned using chemical
products or hard steel brushes. After any cleaning operation has been carried out, it is
important to run several ignition cycles to check all the elements are functioning correctly.
For correct cleaning, the following recommendations should be carefully observed:
Cleaning the boiler body
- Open and remove the outer door of the boiler.
- Remove the burner by unscrewing the fixing nut on the top of the burner.
- Remove the combustion chamber door and the exhaust duct cover, unscrewing the six
fixing nuts around them.
- Clean the exhaust ducts on the cast body, using the cleaning brush supplied with the
boiler.
- Clean the boiler combustion chamber. We recommend using a soft brush for scrubbing
the combustion chamber surfaces, and a blower to remove the flakes.
- After cleaning, replace the combustion chamber door, the exhaust duct cover, the
burner and the outer door of the boiler.
Cleaning the condenser
- Open and remove the top cover of the boiler to access the condenser on the rear of
the boiler body.
- Open the top cover of the condenser to access its exhaust ducts. To open this cover,
release the two side closures, turn the locking plate anti-clockwise and pull the cover
upwards to remove it.
- Remove the exhaust deflectors inside the exhaust outlets.
- Clean the exhaust ducts using the cleaning brush supplied with the boiler. Any scale will
fall through the condensation drain and onto the lower condenser cover. It is advisable
page -20-
to pour water into the top of the condenser for a more effective cleaning. This water will
be automatically discharged through the condensation drain.
- To clean the outer part of the condenser cylinder, remove the three screws and then
remove the metal ring. Take out the seal and use the brush to clean it. Next, put the
components back in place again and replace and tighten the three screws and the
metal ring.
- If the lower condenser cover needs cleaning, remove the side cover of the boiler to
access it. Firstly remove the bracket holding it in place and pull on it to open it. Then pull
the lower cover down to open and clean it.
- After cleaning, replace the fume deflectors, the top condenser cover and the top outer
cover of the boiler. Then put the cleaning brush back inside the boiler.
- The condensation siphon should be cleaned once a year. To do this, remove it and wash
it in soapy water. Replace the siphon after cleaning.
Cleanning
brush
13.2.- Boiler water characteristics
In areas with water hardness over 25-30ºF, treated water must be used in the heating
installation to avoid any lime scale deposits on the boiler. It should be noted that even a few
millimetres of scale will greatly reduce the boiler's heat conductivity, causing a major drop in
performance.
Treated water must be used in the heating circuit in the following cases:
-
Very large circuits (containing a large amount of water).
- Frequent filling of the installation.
If repeated partial or total draining of the installation is necessary, we recommend filling it
with treated water.
13.3.- Anti-frost protection
The TRO Evolution Heat Only Outdoor models are supplied with a factory fitted frost
protection thermostat, located behind the electric panel inside the boiler. This thermostat is
pre-wired to the boiler electrical system and factory set to 3ºC. This will function as long as
the appliance remains plugged into the mains and the master switch is switched on. Despite
page -21-
this function, and particularly in areas with very cold weather, we recommend taking
precautions in order to prevent damage to the boiler. It is advisable to add anti-freeze to
the water in the heating circuit. If the boiler is to be out of use for long periods of time, we
recommend draining all the water and leaving it empty.
13.4.- Condensate drain-off
The drain for boiler condensate must not be altered and must be kept clear of obstructions.
Annual maintenance of the condensate trap is recommended to avoid obstructions that
hinder the discharge.
If a neutralisation system is installed in the condensate drain, it is essential to conduct annual
maintenance of the system, following the instructions of the manufacturer of the
neutralisation system.
page -22-
14.- TECHNICAL DATA
TRO EVOLUTION HEAT ONLY OUTDOOR 20 30 40
Boiler type -
Condensation
Heating only
Rated heat output P
rated
kW 19 30 40
Useful heat output P4 kW 19,0 28,7 38,7
Useful heat output (30%) P1 kW 6,1 8,5 12,4
Seasonal space heating energy efficiency
ȠS
% 90 91 92
% (PCI) 96,55 97,96 97,29
Useful efficiency
Ƞ4
% (PCS) 91,04 92,38 91,74
% (PCI) 103,82 103,45 104,15
Useful efficiency (30%)
Ƞ1
% (PCS) 97,90 97,55 98,21
Auxiliary electricity consumption at full load el
Auxiliary electricity consumption at part load el
kW 0,226
max
kW 0,078
min
Auxiliary electricity consumption in standby mode PSB kW 0,001
Standby heat loss P
Emissions of nitrogen oxides NOx mg/kWh
kW 0,127 0,135 0,17
stby
92 118 119
Heating temperature adjustment ºC 0 - 85
Maximum safety temperature ºC 110
Maximum pressure for heating mode bar 3
Heating expansion vessel capacity Lts 12 14 14
Heating water volume Lts 14 19,2 23,2
Water pressure drop mbar 96 163 272
Fume temperature ºC 69 67 83
Volume on fume side m3 0,094 0,114 0,175
Maximum fume flow Kg/s 0,0085 0,0132 0,0186
Fume pressure drop mbar 0,20 0,20 0,21
Combustion chamber length mm 220 300 400
Combustion chamber type - Wet, with three flue runs
Burner adjustment type - ON/OFF
Electrical supply - ~220-230 V - 50 Hz - 200 W
Gross weight Kg 157 188 217
page -23-
15.- ELECTRICAL DIAGRAM
Q: Burner.
BC: Circulating pump
O/I: Main on/off switch.
TA: Room thermostat.
TC: Control thermostat (in boiler).
J1: Power supply connector.
J2: Components connector.
TS: Safety thermostat (in boiler).
tf3: 93º Anti-inertia thermostat
tAH: Antifrost thermostat.
(in boiler).
PT:Temp blocking pilot light.
page -24-
16.- DIAGRAMS AND MEASUREMENTS
SH
RC
SH
VS
LG
both sides
500
190
L
250
81
155130
IC
2 pre-cut
holes
943
ø52mm in
3 pre-cut holes ø80mm
536
93
80
86
820
686
LG
686
673
SC
in base of boiler
105105
IC: Heating outlet
RC: Heating return
VS: Pressure valve pipework
SH: Fume exhaust duct, Ø100.
SC: Condensate disposal pipe
LG: Fuel pipes
145145
LG
MODEL IC, RC L
TRO EVOLUTION 20
HEAT ONLY OUTDOOR
TRO EVOLUTION 30
HEAT ONLY OUTDOOR
TRO EVOLUTION 40
HEAT ONLY OUTDOOR
3/4”F 900
3/4”F 1000
3/4”F 1100
page -25-
17.- BURNER
17.1.- Assembly
Secure the burner support to the boiler. then fix the burner to the support. This will allow the
correct tilt of the flame tube towards the combustion chamber. Fit the intake and return
pipes.
17.2.- Burner start-up
First place a manometer and a vacuum gauge and prepare the combustion analyser.
The "Domestic" burner is equipped with a self-extracting pump to enable fuel intake from a
tank installed at a lower level than the burner, providing that the pressure difference
measured with the vacuum gauge at the pump does not exceed 0.4 bar (30 cmHg).
Make sure there is fuel in the tank, that the oil valves are open and that voltage is reaching
the burner. Turn on the master switch. Unscrew the air bleed screw (manometer point). Then,
when the valve opens, remove the photocell sensor and move it towards a light source until
the oil comes out. Disconnect the burner and screw the bleed screw back in.
17.3.- Adjusting the combustion conditions
As each particular installation has a different combustion circuit, it is essential to adjust the
combustion conditions of each boiler. In order for the guarantee to be valid, the burner must
be adjusted by an official TRIANCO Technical Assistance Service.
Observe the flame. If there is insufficient combustion air, it will be dark in colour and will
produce smoke, rapidly obstructing the flue outlet.
On the contrary, if there is an excess of combustion air, the flame will be whitish or bluishwhite in colour. This will reduce the performance of the boiler and it will fail to comply with
anti-pollution standards, and the excess air may also hinder the ignition process.
The flame should be orange in colour.
If the shape of the boiler makes it difficult or impossible to observe the flame, the combustion
air flow can be regulated by observing the smoke coming out of the flue. If the smoke is dark
in colour, more air will need to be provided to the burner, or if it is a very whitish colour, the
air in the burner will need to be decreased until no smoke at all is observed.
If you have a device for determining the composition of the combustion gases, this will be
the best guide for flame adjustment. If not, simply follow the above indications.
To adjust the air and burner line conditions, carefully follow the instructions given below.
page -26-
17.4.- Primary air adjustment
BL
RL
-
3 m m
0 1
2/3 m m
3 m m
To adjust the primary combustion air, turn
0
10
the screw using a 6 mm. Allen key, as
shown in the diagram. Turn it clockwise
to increase the airflow, and
anticlockwise to decrease it.
17.5.- Combustion line adjustment
To adjust the combustion line, loosen the combustion line blocking screw "BL". Turn the line
regulator "RL" clockwise to increase the airflow and anticlockwise to decrease it. After
adjustment, tighten the combustion line blocking screw "BL".
+
17.6.- Correct position of electrodes
To ensure correct ignition of the "Domestic" burner, the measurements shown in the diagram
must be observed. Also ensure the electrode fixing screws have been screwed in place
before replacing the flame tube.
page -27-
DANFOSS
2 pipes connection
: Screw
(A)
fitted
.
3
5
4
2
7
6
1
17.7.- Oil pressure adjustment
To adjust the oil pump pressure, turn the screw (1) clockwise to increase the pressure, and
anticlockwise to decrease it.
1 - Pressure adjustment.
2 – Vacuum gauge point.
3 - Valve.
4 - Manometer point.
5 - Nozzle outlet.
6 - Return.
7 - Intake.
17.8.- Pipe operation
According to the oil feeding system
selected for the burner, double pipe or
single pipe, it is necessary to update the
oil pump. The screw (A), identified in the
below drawing, is fitted or not according
to the selected double pipe or single
pipe feeding system.
DANFOSS - MOD. BFP 21 L3
1 pipe connection: Screw (A) NOT fitted
Nota: The screw is supplied in the bag
with the documentation
page -28-
17.9.- Oil supply piping diagrams
H
H
The diagrams and tables below correspond to installations without reductions and with a
perfect hydraulic seal. It is recommended to use copper pipes. A pressure drop of 0.4 bar (30
cmHg) must not be exceeded (reading via a vacuum gauge).
Intake installation
(m) ∅int 8 mm. ∅int 10 mm.
0.0 25 60
0.5 21 50
1.0 18 44
Intake installation
H Pipe length
Charging installation
H
17.10.- Technical specifications
MODEL D-3 D-4
1.5 15 38
2.0 12 26
2.5 10 26
3.0 8 20
3.5 6 16
Charging installation
H Pipe length
(m) ∅int 8 mm. ∅int 10 mm.
0.5 10 20
1.0 20 40
1.5 40 80
2.0 60 100
Minimum consumption Kg/h
Maximum consumption Kg/h
Minimum power kW
Maximum power kW
Fuel
mm2/s at 20ºC Kerosene 28 Sec
Motor power at 2800 r.p.m. W
Adjustment type
Electric current
Weight Kg
Preheater
1,5 2,3
3 4,65
17,7 27,2
35,5 55,2
Gas oil 35 Sec max. Viscosity 6
90-110
On/Off
220 V - 50 Hz
12.5
YES
page -29-
11.8
23.72
47.44
35.58
59.3 Kw
17.11.- Operating curves
mmH2O
OVERPRESSURE / FLOW
15
10
D-3
5
1
10200
2 3 4 5
20400 30600 40800 51000
D-4
Kg/h
Kcal/h
17.12.- Recommended nozzle and pump pressure
TRO Evolution Heat Only Outdoor boilers are supplied with the burner fitted, with their
corresponding nozzle and with the standard pre-adjustment. The following table shows the
nozzles and adjustments for each particular model:
MODEL Nozzle
Burner
pressure
(bar)
Air
adjustment
Line
adjustment
TRO EVOLUTION 20
HEAT ONLY
0,45 80º H 10 7 1
OUTDOOR
TRO EVOLUTION 30
HEAT ONLY
0,65 60º H 10 3,5 1
OUTDOOR
TRO EVOLUTION 40
HEAT ONLY
1,00 45º H 9 3,5 1
OUTDOOR
17.13.- Oil flow versus nozzle and pump pressure
Nozzle
GPH
9 bar 10 bar 9 bar 10 bar
0,45 1,58 1,67 1,4 1,5
0,65 2,29 2,42 2,02 2,17
1,00 3,53 3,72 3,12 3,35
Oil
Kg/h
Kerosene
Kg/h
page -30-
17.14.- Electrical connection diagram
5 6 8 10 11 12 3
TS
Ph
1 2
TC: Control thermostat (in boiler).
TS: Safety thermostat (in boiler).
F: Fuse.
LB: Pilot light.
FR: Photocell.
TR: Transformer.
MB: Motor pump.
MB
F
4
Brown
EV2
TR
EV1
∼
TC
7
Black
TP
LB
RP
Blue
Preheater
EV: Valve.
RP: Preheater element.
Ph: Phase.
FR
N
N: Neutral.
TP: Preheater thermostat.
17.15.- Quick connector
To connect and disconnect the red oil intake tube to the nozzle, proceed as follows:
-
Press the connector ring in the direction of the arrow, pulling on the red tube at the same
time.
PUSH
RING
QUIC K C ONNE CT F ITT ING
RED PIPE
OIL
page -31-
17.16.- Burner control operating sequence
The burner's LMO14 control box has a
reset button "EK", which is the key
element for resetting the burner control
and activating/deactivating the
diagnostic functions.
The multi-colour LED on the reset button is
the indicator for visual diagnosis. The "EK"
button and the LED are located under
the transparent cover of the reset button.
During normal functioning, the various
operating statuses are indicated in the
form of colour codes (see the colour
code table below). During ignition, the
indication is as shown in the following
table:
Reset button
If the button is on, press to reset.
If the button stays on, call the Technical
Assistance Service.
page -32-
18.- FAILURES
Drain the installation and the boiler
(the automatic air drain valve cap
This section provides a list of the most common burner and boiler failures.
18.1.- Burner error code
We have already mentioned that the burner is equipped with a cut-out system, indicated by
the reset button light. It may cut out accidentally, and in this case the steady red light on this
button will come on. You may unblock it by pressing the button for approx. 1 second. When
the burner is blocked and the steady red light is on, visual failure diagnosis may be
activated, in accordance with the error code table. To enter visual failure diagnosis mode,
hold down the reset button for at least three seconds.
Error code table
Red flashing LED
code
“AL” on
term. 10
Possible cause
Flashes 2 times On No flame established when ignition safety
time ends.
- Fuel valves defective or dirty
- Flame detector defective or dirty
- Burner maladjustment, no fuel
- Ignition unit defective
Flashes 4 times On External light during burner ignition
Flashes 7 times On Excessive flame loss during functioning
(limited number of repetitions)
- Fuel valves defective or dirty
- Flame detector defective or dirty
- Burner maladjustment
Flashes 8 times On Supervision of fuel pre-heater time
Flashes 10 times On Cabling fault or internal failure, output
contacts, other failures
During the failure diagnosis time, the control outputs are disabled and the burner remains
off.
To exit failure diagnosis and activate the burner again, reset the burner control. Hold down
the reset button for approx. 1 second (<3 s).
18.2.- Boiler failures:
FAILURE CAUSE SOLUTION
RADIATOR
DOES NOT
- The pump is not turning Unblock the pump
- Air in hydraulic circuit
HEAT UP
must always be loose)
- Burner badly adjusted Adjust it correctly
EXCESSIVE
NOISE
- Flue not correctly sealed Eliminate any leaks
- Flame unstable Examine the burner
- Flue not insulated Suitably insulate it
page -33-
18.3.- Boiler Security Thermostat
Boiler temperature
security thermostat
(TS)
If the boiler goes into safety lockout due to overheating of the boiler (TS), reset by pressing
the appropriate button on the thermostat. To access the buttons, unscrew the black cap.
18.4.-
Circulating pump alarms
The high efficiency pumps include a Led (light) which displays their status.
PUMP
LIGHT
It is lit
green
It flashes
green
It flashes
red/gree
n
Flashes
red
Light off
DESCRIPTION STATUS CAUSE SOLUTION
The pump is
functioning
Standby mode
(PWM version)
The is ready for
service but is not
functioning
The pump is out of
order
There is no power
supply
The pump
operates
according to
its setting
The pump is
in standby
mode
The pump will
start up
again
automatically
once the
error has
been solved
The pump is
stopped
(blocked)
The electrical
system is not
receiving
power supply
Standard functioning
1. Low voltage
U<160 V
or
Excess voltage
U>253 V
2. Excess temperature
of the module: the
temperature of the
motor is too
high
The pump does not
start up automatically.
1. The pump is not
connected to the
power supply
2. The LED is faulty 2. Check if
3. The electrical system
is
faulty
1. Check the
power
supply
195 V<U<253 V
2. Check the
room
temperature and that
of the fluid
Change the pump. Please
contact your nearest official
technical assistance service
to have it replaced
1. Check the
connection of the
cable
the pump
works
3. Change the
Pump. Change the ump.
Please contact your nearest
official technical assistance
service to have it replaced